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Finding the Fourth Proportional to 1,281,971.64, 1,769,665.58 and 798,775.52

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Solution

The fourth proportional to 1,281,971.64, 1,769,665.58 and 798,775.52 is: 1,102,649.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,971.64 : 1,769,665.58 = 798,775.52 : x
  2. Step 2: Convert to fraction form
    1,281,971.64/1,769,665.58 = 798,775.52/x
  3. Step 3: Cross multiply
    1,281,971.64x = 1,769,665.58 × 798,775.52
  4. Step 4: Simplify right side
    1,281,971.64x = 1,413,565,535,042.27
  5. Step 5: Solve for x
    x = 1,413,565,535,042.27/1,281,971.64
  6. Step 6: Final answer
    x = 1,102,649.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.